Question

What is meant by biogeography? Discuss the biogeographic evidence in support of organic evolution.

Answer 1

Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. For scientists who study evolution, biogeography is often an important part of their analysis, because it provides compelling proof for their theory. This is because many geographical features, such as oceans, rivers, mountains, and islands, provide barriers to species, allowing scientists to observe how they evolve separately from one another.